Tri-hull boat



FIG. 1 is a bottom perspective view of a tri-hull boat showing my new design;

FIG. 2 is a top and side perspective view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a starboard side elevational view thereof, the port side elevational view being identical thereto;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is an elevational view of a forward end thereof; and,

FIG. 7 is an elevational view of an aft end thereof. 

The ornamental design for a tri-hull boat, as shown and described. 